Module litebridge.db.spi

Package org.litebridgedb.db.spi.query

Enum Class Operator

java.lang.Object

java.lang.Enum<Operator>

org.litebridgedb.db.spi.query.Operator

All Implemented Interfaces:

Serializable, Comparable<Operator>, Constable

public enum Operator
extends Enum<Operator>

Enum of various operators that can be used in database query conditions.

The operators define the comparison or logical operations used in constructing query conditions. They are primarily used in conjunction with the Condition class to define query filters.

List of supported operators:

• EQ: Equality comparison.
• NEQ: Inequality comparison.
• GT: "Greater than" comparison.
• GTE: "Greater than or equal to" comparison.
• LT: "Less than" comparison.
• LTE: "Less than or equal to" comparison.
• IN: Inclusion in a set.
• IS_NULL: Checks if a value is null.
• IS_NOT_NULL: Checks if a value is not null.
• USING: Used to specify columns for joining tables.

See Also:

• Condition

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
EQ	Equals
GT	Greater than
GTE	Greater than or equal to
IN	Inclusion in a set
IS_NOT_NULL	Checks if a value is not null
IS_NULL	Checks if a value is null
LT	Less than
LTE	Less than or equal to
NEQ	Not equals
USING	Used to specify columns for joining tables.

Method Summary

Modifier and Type	Method	Description
static Operator	valueOf(String name)	Returns the enum constant of this class with the specified name.
static Operator[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

EQ

public static final Operator EQ

Equals

NEQ

public static final Operator NEQ

Not equals

GT

public static final Operator GT

Greater than

GTE

public static final Operator GTE

Greater than or equal to

LT

public static final Operator LT

Less than

LTE

public static final Operator LTE

Less than or equal to

IN

public static final Operator IN

Inclusion in a set

IS_NULL

public static final Operator IS_NULL

Checks if a value is null

IS_NOT_NULL

public static final Operator IS_NOT_NULL

Checks if a value is not null

USING

public static final Operator USING

Used to specify columns for joining tables.

Method Details

values

public static Operator[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static Operator valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null